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0. H. EMERSON.

CAR BRAKE SHOE.

No. 448,011. Patented Mar. 10, 189-1.

' UNITED ST ATES PATENT OFFICE.

CHARLES H. EMERSON, OF MASON CITY, IOWVA, ASSIGNOR TO CHARLES H. ACKERT, OF MARSHALLTOIVN, IOIVA, AND ROBERT WV. GREEN, OF ST.

LOUIS, MISSOURI.

CAR-BRAKE SHOE.

SPECIFICATION forming part of Letters Patent No. 448,011, dated March 10, 1891.

Application filed December 80, 1890- Serial No. 376,255. (No model.)

To all whom it nuty concern:

I Be it known that I, CHARLES H. EMERSON, of Mason City, in the county of Cerro Gordo and. State of Iowa, have invented a certain 5 new and useful Improvement in Car-Brake Shoes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to the construction of the bracket or holder and the shoe or sole plate; and the improvement consists, principally, in the provision of a side rib upon the sole-plate by which itis prevented from lodg- I5 ing 011 the rail in case it may drop from the bracket or holder.

Figure I is a perspective view of the parts detached. Fig. II isa perspective view of the parts in position. Fig. III is a vertical sec- 20 tion of the device, taken in the plane of the attaching-bolts.

1 is the ordinary brake-bar.

2 is the holder-bracket, having projections 3 fitting the top and bottom of the brake-bar,

5 the face 4 fitting the edge of the brake-bar that is nearer to the wheel. The bracket is held upon the brake-bar by a bolt 5, whose head occupies acounterbore or countersink inthe bracket, and which passes through both 0 the. bracket and the brake-bar. The bracket has projections 6, between which is a dovetail groove 7 to receive a dovetail projection 8 upon the sole-plate 9. The projections 6 have vertical bolt-holes 10 to receive a key-bolt 11, 3 5 that also passes through a groove or hole 12 in the dovetail projection of the shoe. The

key-bolt prevents the side movement of the sole-plate upon the bracket, and so locks the parts together, as the dovetail joint prevents any other movement of the sole-plate upon the "bracket.

13 is a rib at one side of the sole-plate, that overlaps the sides of the projections 6 upon the outer side, so as to prevent the sole-plate from slidinginward upon the bracket in case the key-bolt may have been carelessly left out or may have been accidentally jerked out or broken, so that in no case can the sole plate fall upon the rail or on the inner side of the rail, and consequently cannot be struck by either the tread or the flange of the wheel. Thus all danger of derailment by a sole-plate is avoided. The rib 13 also prevents the soleplate from slipping inward upon the bracket, and by coming in contact with the flange of the wheel interfering with the movement of the brake-bar toward the wheels.

I claim as my invention 1. The combination of a brake-shoe bracket adapted for attachment to a car-brake bar, a sole-plate having slip-joint connection therewith, substantially as set forth, and the side rib 13, constructed and adapted to operate substantially-as set forth.

2. The combination, in a brake-shoe, of a bracket 2, adapted for attachment to a carbrake bar 1, and a sole-plate having sliding dovetail connection with the said bracket, and having a side rib 13 extending along one side of the bracket,substantiallyas and for the purpose set forth.

CHARLES II. EMERSON.

In presence of S. M. ROGERS, H. J. AOKERT. 

